Energy Production Facing Limits of Water Scarcity发电面临用水危机 Nearly all forms of energy production use large amounts of water. Coal, which generates nearly 50 percent of the electricity in the U.S., needs water for mining and transport,

发表于:2019-01-13 / 阅读(91) / 评论(0) 分类 VOA标准英语2012年(一月)

Poor Economy Forces Ukraine Miners into Illegal Operations 经济不景气迫使乌克兰矿工违规操作 DONBASS, UKRAINE The Donbass coal field in eastern Ukraine is a huge reserve that once made this region one of the most powerful in the former

发表于:2019-01-14 / 阅读(79) / 评论(0) 分类 VOA标准英语2014年(四月)